It surprised me when Pentax released firmware update version 1.01 for Pentax K-30 DSLR in such a short time (around six months), since Pentax K-30 performed very well without serious issue. According to the official, changes on Firmware version 1.01:
Other than Pentax K-30, the little Pentax Q also get a new firmware update Ver 1.10. The downloadable firmware (10.8MB) for Pentax K-30 and Pentax Q available here,
Updating Procedure provided on the official site as below,
 Provide a formatted SD memory card for the update software.
The download file is self-extracting. The following file is extracted.
Fwdc215b.bin: This is the updated firmware.
Copy the above Firmware file [fwdc215b.bin] to the root directory in the SD card.
If your computer does not have a card slot, you can copy the firmware update file by inserting the SD card into your camera and then connecting the camera directly to your computer.
Insert the the D-LI109 battery into the camera and confirm the battery is full by battery level indicator then turn the camera off.
 Insert the update SD card (prepared in step 1) into the camera and close card cover.
 Turn the camera power on.
 Press MENU button to display MENU screen.
 Press the four-way controller right to display [Set-up 3] menu screen.
 Select [Firmware Info /Options] in the [Set-up 3] menu then press the four-way controller right.
The firmware version for the camera and lens are displayed on the [Firmware Info/Options] screen.
 Press the four-way controller right to display update screen.
Press the four-way controller up to select [Start] and press OK button.
*If firmware file is not saved to SD card correctly, this screen will not be displayed.
 Card access lamp will be blinked and display will be changed from [NOW LODING] to [COMPLETE].
*Do not turn OFF the camera while updating.
 Automatically turn OFF the camera. (Approx. 5 second)
 Remove the SD card from camera.
*Confirm the version of firmware with above [How to check version].
When updating is finished, the update SD card still contains the Firmware file.
If you want to use this card to take pictures, format the card by the camera to delete firmware file first.
For more information and discussion, check out here:
Thanks to yoshikiget for sharing the YouTube video for clearer update process,